Answer:
B
Explanation:
process of elimination. The other ones were wrong tbh. Also, in natural selection genetic variation/mutations are a HUGE FACTOR according to darwins 3 principles of evolution.
Answer:Before the reaction, there are 4 oxygen atoms,and after the reaction, there are 4 oxygen atoms.The same is true for hydrogen atoms.So, atoms are not created or destroyed.This supports the claim that matter is conserved during a chemical reaction.
Explanation:
The answer is "All of the cells have a nucleus"
I'm pretty sure it's Obesity
Here is your answer mate! Hope this helps!
Answer: A molecule is a group of atoms that are together, and that represent the smallest unit of a chemical compound that can take part in a chemical reaction. A compound is a thing that is composed of two or more different things, or separate elements; a mixture.
An example of a molecule can be carbon dioxide CO 2, Water O 2, or Oxygen O 2. An example of a compound can be water - formula H 2 O = Hydrogen 2+ oxygen or any other scientific mixture of two or more things or objects, etc. Please mark as brainliest, thank you!
